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Photonics and LED Lighting News

Projection mapping leaves the darkness behind

Images projected onto objects in the real world create impressive displays that educate and entertain. However, current projection mapping systems all have one common limitation: they only work well in the dark. In a study recently published in IEEE Transactions on Visualization and Computer Graphics, researchers from Osaka University suggest a way to bring projection mapping "into the light."

Posted on 18 March 2024 | 4:01 pm

Holographic message encoded in simple plastic

There are many ways to store data—digitally, on a hard disk, or using analog storage technology, for example as a hologram. In most cases, it is technically quite complicated to create a hologram: High-precision laser technology is normally used for this.

Posted on 18 March 2024 | 2:58 pm

Direct laser writing on halide perovskites: From mechanisms to applications

Metal halide perovskites have become well-deserved "star" materials among a variety of semiconductors owing to their excellent optoelectronic properties, such as high photoluminescence (PL) quantum yield (QY), high absorption coefficient, tunable bandgaps, long carrier diffusion lengths, and high defect tolerance, attracting enormous attention from both academia and industry.

Posted on 15 March 2024 | 6:13 pm

Chiral transmission by an open evolution trajectory in a non-Hermitian system

In non-Hermitian systems, two or more eigenvalues and eigenstates of a resonant system coalesce at Exceptional points (EPs). Dynamic encircling of EPs has received significant interest in recent years, as it leads to highly nontrivial phenomena, such as chiral transmission, in which the final state of the system depends on the encircling handedness.

Posted on 15 March 2024 | 6:11 pm

Ultra-flat optics for broadband thermal imaging

Long-wavelength infrared (LWIR) imaging holds critical significance across many applications, from consumer electronics to defense and national security. It finds applications in night vision, remote sensing, and long-range imaging. However, the conventional refractive lenses employed in these imaging systems are bulky and heavy, which is undesirable for almost all applications. Compounding this issue is the fact that many LWIR refractive lenses are crafted from expensive and limited-supply materials, such as germanium.

Posted on 15 March 2024 | 5:53 pm

Researchers develop a new strategy to enhance blue perovskite LED performance

Prof. Cui Linsong's research team from the University of Science and Technology of China (USTC), cooperating with Prof. Samuel D. Stranks' team from the University of Cambridge, devised a novel strategy to enhance the performance of blue light-emitting diodes (LEDs) based on perovskite materials. Their work has been published in Nature Photonics.

Posted on 15 March 2024 | 3:51 pm

Brighter, cheaper blue light could revolutionize screen technology

Researchers have found a new way to simplify the structure of high-efficiency blue organic light-emitting diodes (OLEDs), which could lead to longer-lasting and higher definition television screens.

Posted on 15 March 2024 | 3:50 pm

New excitation method of stimulated Raman scattering achieves natural-linewidth-limit spectral lines

Stimulated Raman Scattering (SRS) has been developed as an essential quantitative contrast for chemical imaging in recent years. However, the spectral resolution of the mainstream SRS modalities is always lower than the state-of-the-art spontaneous Raman system.

Posted on 15 March 2024 | 3:20 pm

Researchers prove fundamental limits of electromagnetic energy absorption

Electrical engineers at Duke University have determined the theoretical fundamental limit for how much electromagnetic energy a transparent material with a given thickness can absorb. The finding will help engineers optimize devices designed to block certain frequencies of radiation while allowing others to pass through, for applications such as stealth or wireless communications.

Posted on 14 March 2024 | 8:36 pm

Researchers develop a new type of frequency comb that promises to further boost the accuracy of timekeeping

Chip-based devices known as frequency combs, which measure the frequency of light waves with unparalleled precision, have revolutionized timekeeping, the detection of planets outside of our solar system and high-speed optical communication.

Posted on 14 March 2024 | 7:46 pm

Quantum dance to the beat of a drum: Researchers observe how energy of single electron is tuned by surrounding atoms

Physicists at the University of Regensburg have choreographed the shift of a quantized electronic energy level with atomic oscillations faster than a trillionth of a second.

Posted on 14 March 2024 | 10:00 am

How to upcycle low-energy light: A new design for highly efficient conversion materials

To combine two low-energy photons into one high-energy photon efficiently, the energy must be able to hop freely, but not too quickly, between randomly oriented molecules of a solid. This Kobe University discovery provides a much-needed design guideline for developing materials for more efficient PV cells, displays, or even anti-cancer therapies.

Posted on 14 March 2024 | 12:00 am

Researchers achieve quantum key distribution for cybersecurity in novel experiment

Researchers at the Department of Energy's Oak Ridge National Laboratory have demonstrated that advanced quantum-based cybersecurity can be realized in a deployed fiber link.

Posted on 13 March 2024 | 8:41 pm

Researchers generate super-fast electrons with table-top laser systems

In massive particle accelerators, sub-atomic particles (like electrons) are sped up to super-high speeds comparable to the speed of light towards a target surface. The collision of accelerated sub-atomic particles gives rise to unique interactions enabling scientists to obtain a deeper understanding of the fundamental properties of matter.

Posted on 13 March 2024 | 6:32 pm

Polarization-sensitive tomography made easy with tensorial tomographic Fourier ptychography

In the realm of medical imaging, there are quite a few different techniques to extract information from biological tissue based on its different interactions with visible light. Over the past decade, there has been a massive surge in research focusing on quantitative phase imaging, which involves capturing and analyzing how the phase of a light changes as it passes through a sample.

Posted on 13 March 2024 | 4:18 pm

Team achieves successful mass production of metalenses designed for application in the ultraviolet region

Ultraviolet rays find diverse applications in medical and health care, serving purposes such as disinfection, sterilization, and therapy. They are also used in the semiconductor industry for creating microcircuits and patterns.

Posted on 12 March 2024 | 2:28 pm

Novel method for controlling light polarization uses liquid crystals to create holograms

Researchers have made a significant breakthrough in controlling the polarization of light, a crucial property for various applications such as augmented reality, data storage, and encryption.

Posted on 11 March 2024 | 5:42 pm

New type of tunable filter reveals the potential for terahertz wireless communications

Electromagnetic waves in the terahertz frequency range offer many advantages for communications and advanced applications in scanning and imaging, but realizing their potential poses challenges. Researchers at Tohoku University have addressed one of the key challenges by developing a new type of tunable filter for signals in the terahertz wave band. They published their work in the journal Optics Letters.

Posted on 11 March 2024 | 3:44 pm

A project to build a new synchrotron in the Greater Caribbean

Researchers from the Universitat Politècnica de València (UPV), the Universidad Autónoma de México (UNAM), and the Centro Internacional de Física de Bogotá are working on a project to build a new synchrotron in the Greater Caribbean. The latest issue of Nature features an article on the history of this initiative and the steps being taken to make it a reality.

Posted on 11 March 2024 | 3:18 pm

Quantum imaging could create bright future for advanced microscopes

The unique properties of quantum physics could help solve a longstanding problem that prevents microscopes from producing sharper images at the smallest scales, researchers say.

Posted on 8 March 2024 | 3:39 pm

Glovebox-assisted magnetic force microscope offers easier image of air-sensitive samples

A research team led by Prof. Lu Qingyou from Hefei Institutes of Physical Science (HFIPS) of the Chinese Academy of Sciences (CAS) achieved a breakthrough by creating a Magnetic Force Microscope (MFM) that can image air-sensitive materials without requiring surface protection coatings.

Posted on 7 March 2024 | 9:51 pm

Concentration-independent pressure sensing method developed for high-temperature combustion diagnostics

Recently, a research group led by Prof. Gao Xiaoming and Prof. Liu Kun from Hefei Institutes of Physical Science (HFIPS), Chinese Academy of Sciences (CAS), developed a concentration-independent pressure sensing method based on two-color laser absorption spectroscopy for high-temperature combustion diagnostics.

Posted on 7 March 2024 | 7:49 pm

Ultraviolet spectroscopy: A leap in precision and accuracy at extremely low light levels

Ultraviolet spectroscopy plays a critical role in the study of electronic transitions in atoms and rovibronic transitions in molecules. These studies are essential for tests of fundamental physics, quantum-electrodynamics theory, determination of fundamental constants, precision measurements, optical clocks, high-resolution spectroscopy in support of atmospheric chemistry and astrophysics, and strong-field physics.

Posted on 7 March 2024 | 5:54 pm

Optically trapped quantum droplets of light can bind together to form macroscopic complexes

Condensed matter systems and photonic technologies are regularly used by researchers to create microscale platforms that can simulate the complex dynamics of many interacting quantum particles in a more accessible setting. Some examples include ultracold atomic ensembles in optical lattices, superconducting arrays, and photonic crystals and waveguides. In 2006 a new platform emerged with the demonstration of macroscopically coherent quantum fluids of exciton-polaritons to explore many-body quantum phenomena through optical techniques.

Posted on 7 March 2024 | 5:15 pm

Designing a drone that uses adaptive invisibility: Towards autonomous sea-land-air cloaks

The idea of objects seamlessly disappearing, not just in controlled laboratory environments but also in real-world scenarios, has long captured the popular imagination. This concept epitomizes the trajectory of human civilization, from primitive camouflage techniques to the sophisticated metamaterial-based cloaks of today.

Posted on 6 March 2024 | 5:47 pm

Photons that make quantum bits 'fly' for stable exchange of information in quantum computers

Two physicists at the University of Konstanz are developing a method that could enable the stable exchange of information in quantum computers. In the leading role: photons that make quantum bits "fly."

Posted on 6 March 2024 | 4:47 pm

'Ruler for light' could enable detailed measurement in personal devices

Stanford researchers have unveiled a new type of frequency comb, a high-precision measurement device, that is innovatively small, ultra-energy efficient, and exceptionally accurate. With continued development, this breakthrough "microcomb"—which is detailed in a study published March 7 in Nature—could be the basis for mass-market adoption of the devices in everyday electronics.

Posted on 6 March 2024 | 4:00 pm

Researchers develop method to manipulate structured light without distortion

The many properties of light allow it to be manipulated and used for applications that range from very sensitive measurements to communications and intelligent ways to interrogate objects. A compelling degree of freedom is the spatial pattern, called structured light, which can resemble shapes such as donuts and flower petals. For instance, patterns with different numbers of petals can represent letters of the alphabet, and when observed on the other side, deliver the message.

Posted on 5 March 2024 | 7:23 pm

New method measures the 3D position of individual atoms

For more than a decade it has been possible for physicists to accurately measure the location of individual atoms to a precision smaller than one-thousandth of a millimeter using a special type of microscope. However, this method has so far only provided the x and y coordinates. Information on the vertical position of the atom is lacking.

Posted on 5 March 2024 | 5:01 pm

Researchers use liquid crystals to control polarization inside laser-written waveguides

Researchers have developed a new way to control and manipulate optical signals by embedding a liquid crystal layer into waveguides created with direct laser writing. The new devices enable electro-optical control of polarization, which could open new possibilities for chip-based devices and complex photonic circuits based on femtosecond-written waveguides.

Posted on 4 March 2024 | 10:43 pm

Jeinz Macias: Biography, Girlfriend, Family, Wikipedia

Jeinz Macias is a name that has recently gained popularity in the music business, mainly in Latin America. Jeinz has won the hearts of many fans with his special combination of classic and contemporary sounds, and he is quickly rising to prominence in the music world. But it is Jeinz’s humility, not just his talent, […]

The post Jeinz Macias: Biography, Girlfriend, Family, Wikipedia appeared first on TechVibe.

Posted on 4 March 2024 | 6:52 pm

Unblocked Games WTF: Play games at school or work

Are you weary of being unable to play your favorite games at school or work? Look no farther than unblocked games wtf. In this post, we’ll go over everything you need to know about unblocked games wtf, including what they are, how they operate, and which games to play. Prepare to play insane unblocked games […]

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Posted on 28 February 2024 | 4:54 pm

HBO MaX TVsignin Code: How to hbomax/tvsignin

HBO MaX TVsignin Code: How to hbomax/tvsignin: Are you prepared to begin streaming your favorite HBO series and movies on HBO Max? You’ll need to activate your account by entering your HBO Max Tvsignin code before you can delve into the limitless entertainment selections. In this post, we’ll guide you through the steps of entering […]

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Posted on 28 February 2024 | 2:08 pm

The mobile way to send a fax

Nowadays, it’s really easy to sign a PDF on your phone or any device and send it through email. However, not everyone is okay with getting documents this way – sometimes, you may need to send them via fax. But did you know? You can’t turn your smartphone into a fax machine. Instead, you’ll have […]

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Posted on 26 February 2024 | 6:02 pm

Everything you need to know about Double VPN

Navigating the quest for privacy, premier Virtual Private Networks (VPNs) offer robust protection. They serve to obscure your online tracks, shield you from the myriad hazards lurking in the digital realm, and empower you to overcome web restrictions. Yet, there are instances when a higher level of security is imperative. During such times, the utility […]

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Posted on 26 February 2024 | 4:47 pm

Messe Frankfurt buys in to LightFair

Global trade fair organizer acquires a stake in the largest U.S. lighting tradeshow from ANDMORE.

Posted on 26 February 2024 | 12:00 am

Signify aces its own environmental test

And its continuous place on the Dow Jones Sustainability World Index backs up the home-grown scorecard.

Posted on 22 February 2024 | 12:00 am

PRODUCT SPOTLIGHT | Light + Building 2024

A selection of products highlighting trends at the Light + Building tradeshow in Frankfurt, Germany (March 3–8, 2024).

Posted on 21 February 2024 | 12:00 am

7 Tips For Increasing Viewer Engagement During Live Streams

Many people (82% of them) would rather watch live movies than read other posts on social media. But a lot of people who watch live streams leave because they get bored quickly and find no interest due to poor streaming strategies. These are seven effective tips to get people to watch your live show. From […]

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Posted on 20 February 2024 | 7:57 pm

IGanony: View Instagram Stories Anonymously

IGanony is a wonderful tool for sending Instagram Stories anonymously to viewers or downloading public content without upsetting the owners. It is the best alternative app. It is really quick and simple to use for everyone. What is IGanony, and why do we use it? IGanony is a web-based service that enables users to view […]

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Posted on 19 February 2024 | 3:47 pm

Glamox revenue up on renovations and offshore, but it records a loss

Fluorescent bans and energy reduction drives are boosting sales. Costs and currency remain a challenge.

Posted on 19 February 2024 | 12:00 am

Cookape: How to Get Free Instagram Followers in 2024

Cookape seems like a great name for your Instagram social network. Most individuals desire a large Instagram following on their account for a variety of reasons, such as boosting the amount of likes on their Instagram photos or becoming a popular company. So, in this content, we will assist you in your goal. There is […]

The post Cookape: How to Get Free Instagram Followers in 2024 appeared first on TechVibe.

Posted on 18 February 2024 | 7:17 pm

Fagerhult: Renovation projects keep the order bell ringing

Along with it goes smart lighting, which abets energy savings and profit margins. It overrides a fourth quarter sales and profit drop in the financial results. Meanwhile, no more horticulture.

Posted on 16 February 2024 | 12:00 am

IN MEMORIAM | Remembering William ‘Bill’ Brown, Bill Brown Sales and A.L.P.

Brown and his wife grew the business from their family home in the 1950s, turning the small component sales agency into a well-known, one-stop firm for lighting OEMs.

Posted on 14 February 2024 | 12:00 am

Lighting scheme could eliminate a costly phase of cannabis growing

A research team says that indoor farms might skip vegetative stage and go straight to flowering.

Posted on 13 February 2024 | 12:00 am

Wearable LED tech immerses fans in Half-Time Show experience

Performer wristbands and VIP badges by PixMob illuminate the Super Bowl LVIII Half-Time performance.

Posted on 12 February 2024 | 12:00 am

Sales and income fall, but automotive drives up ams Osram outlook

Orders are up for LED headlights, taillights, and interiors as carmakers go ever more digital. Horticulture could be coming back. What’s the latest on micro LEDs?

Posted on 9 February 2024 | 12:00 am

Canadian grower trialing far-red LEDs on mini cucumbers

The jury is still out on the spectra, but interest is picking up, as Red Sun taps variable wavelength system from Sollum, which has now signed up a cannabis farm as well.

Posted on 7 February 2024 | 12:00 am

LEDucation 2024 expands virtual programming

Online program takes place several days in advance of in-person event to capitalize on extended audience, while delivering a range of practical and thought-leadership seminars.

Posted on 7 February 2024 | 12:00 am

Parliamentary group insists that Government take action on U.K. light pollution

The House of Lords Science and Technology Committee calls light pollution a health hazard in need of a national policy and detailed research.

Posted on 2 February 2024 | 12:00 am

Supply chain hangover caused the OEM stupor at Signify

Huge inventories among customers hammered financial results and helped lead to the recently announced corporate restructuring, CEO Rondolat explains.

Posted on 31 January 2024 | 12:00 am

LAST WORD | Osin founder pursues circadian accessibility for all

RALPH BOOTH explains how a subscription-driven product focused on an occupant’s area – rather than a whole-project retrofit approach – simplifies circadian-effective lighting and renders it more cost effective.

Posted on 30 January 2024 | 12:00 am

EMERGING TECHNOLOGY | Leveraging LED and 3D printing technology for a sustainable SSL paradigm – Part I

DON PEIFER examines how the industry can move from replicating linear fluorescent technology in commercial fixtures to 3D-printed replacements that revamp the lighting manufacturing and supply chain.

Posted on 30 January 2024 | 12:00 am

STANDARDS & PROGRAMS | TM66 delivers a metric for evaluating lighting circularity claims

BOB BOHANNON summarizes the driving forces and challenges in adopting circular principles in the lighting market, and describes what the TM66 Circular Economy Assessment Method offers to help lighting manufacturers achieve circularity with their fittings.

Posted on 30 January 2024 | 12:00 am

CONNECTIVITY | Connected emergency lighting simplifies code-required testing and maintenance

Connectivity infuses emergency lighting systems with advanced monitoring and testing features that strengthen reliability and enable adherence to code requirements, TOM STOLL and SEAN CASH explain.

Posted on 30 January 2024 | 12:00 am

PROFILES IN LIGHTING | Crossroads LED

Crossroads LED pursues DarkSky compliance and high light quality for municipal outdoor lighting customers.

Posted on 30 January 2024 | 12:00 am

PRODUCT SPOTLIGHT | Decorative & Accent Fixtures

A selection of decorative and accent fixtures delivers flexible features and streamlined appearance in interior/exterior applications.

Posted on 30 January 2024 | 12:00 am

INDUSTRY INSIGHTS | Shine bright, right wrongs: Revolutionize cities with quality streetlighting

Traffic engineer NICK MESLER provides background on former redlining practices, their impacts on local streetlighting infrastructure, and how municipal authorities can move beyond outdated equipment and deployment strategies to ensure all communities have the opportunity to thrive.

Posted on 30 January 2024 | 12:00 am

COMMENTARY | Miles to go before we sleep

During its 20 years, LEDs Magazine has covered a wealth of technology development. CARRIE MEADOWS looks ahead to new prospects for responsible lighting.

Posted on 30 January 2024 | 12:00 am

LIGHTSPEC | Product developers agree dupes hurt lighting innovation

Over on the LightSPEC website, HAYDEN BEESON learns from manufacturers that imitation lighting products can impact their business reputation.

Posted on 30 January 2024 | 12:00 am

Once again, Signify margins improve while sales and earnings fall

Bright spots emerge, as the horticultural slump could be over. But with geopolitics, world markets remain volatile across the company’s businesses

Posted on 26 January 2024 | 12:00 am

Dutch greenhouse studying effects of variable spectra on peppers

Partnering with Canada’s Sollum, the Delphy Improvement Center will also mix and match different irrigation systems to find the optimal combination of light and water.

Posted on 24 January 2024 | 12:00 am

New lighting conference zeroes in on carbon emissions reduction

Recolight and the Lighting Industry Association jointly announced the Net Zero Lighting Conference, created to aid the lighting industry in applying carbon-reduction strategies.

Posted on 24 January 2024 | 12:00 am